8780578420367 has 4 divisors (see below), whose sum is σ = 9456007529640. Its totient is φ = 8105149311096.

The previous prime is 8780578420349. The next prime is 8780578420373. The reversal of 8780578420367 is 7630248750878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8780578420367 - 2²⁰ = 8780577371791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8780548420367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337714554617 + ... + 337714554642.

It is an arithmetic number, because the mean of its divisors is an integer number (2364001882410).

Almost surely, 2^{8780578420367} is an apocalyptic number.

8780578420367 is a deficient number, since it is larger than the sum of its proper divisors (675429109273).

8780578420367 is a wasteful number, since it uses less digits than its factorization.

8780578420367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675429109272.

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 8780578420367 in words is "eight trillion, seven hundred eighty billion, five hundred seventy-eight million, four hundred twenty thousand, three hundred sixty-seven".